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| author | David Woodhouse <dwmw2@infradead.org> | 2005-07-05 22:03:10 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-07-06 14:07:54 +0200 |
| commit | 9dee7503ce3fc38911b9873216619190cf688128 (patch) | |
| tree | 4a980e7afd14722a81472600ed13e147ff69f923 /fs/jffs2/nodelist.h | |
| parent | 10c96f2ec37f5369a785cf8c5a065a15e323c743 (diff) | |
| download | linux-stable-9dee7503ce3fc38911b9873216619190cf688128.tar.gz linux-stable-9dee7503ce3fc38911b9873216619190cf688128.tar.bz2 linux-stable-9dee7503ce3fc38911b9873216619190cf688128.zip | |
[JFFS2] Optimise jffs2_add_tn_to_list
Use an rbtree instead of a simple linked list. We were wasting
an amazing amount of time in jffs2_add_tn_to_list().
Thanks to Artem Bityuckiy and Jarkko Jlavinen for noticing.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/jffs2/nodelist.h')
| -rw-r--r-- | fs/jffs2/nodelist.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h index a65539f28b06..b34c397909ef 100644 --- a/fs/jffs2/nodelist.h +++ b/fs/jffs2/nodelist.h @@ -7,7 +7,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: nodelist.h,v 1.130 2005/04/09 10:46:59 dedekind Exp $ + * $Id: nodelist.h,v 1.131 2005/07/05 21:03:07 dwmw2 Exp $ * */ @@ -161,7 +161,7 @@ struct jffs2_full_dnode */ struct jffs2_tmp_dnode_info { - struct jffs2_tmp_dnode_info *next; + struct rb_node rb; struct jffs2_full_dnode *fn; uint32_t version; }; @@ -387,7 +387,7 @@ static inline struct jffs2_node_frag *frag_last(struct rb_root *root) D2(void jffs2_print_frag_list(struct jffs2_inode_info *f)); void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list); int jffs2_get_inode_nodes(struct jffs2_sb_info *c, struct jffs2_inode_info *f, - struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp, + struct rb_root *tnp, struct jffs2_full_dirent **fdp, uint32_t *highest_version, uint32_t *latest_mctime, uint32_t *mctime_ver); void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state); |